Fox News Weather Center

Midwest, Northeast Taste of Summer Won't Last

The taste of summer kicking off this week across much of the Midwest and Northeast is not a sign of things to come with cooler air set to make a comeback.

The majority of the Midwest and Northeast will see temperatures on Monday top Mother's Day highs.

Highs in the 80s are expected northward to Chicago, Detroit, Albany, New York, and Boston.

Louisville, Kentucky, Washington, D.C., and Philadelphia will come close to recording the first 90-degree day of the year.

A surge of higher humidity will accompany the warmth on Monday across the Midwest and northward to around New York City.

Fans of summerlike weather who plan on spending a part of Monday outdoors should keep an eye to the sky with thunderstorms set to rattle some communities. Remember to seek shelter as soon as thunder is heard; you are then close enough to be struck by lightning.

The greatest threat for thunderstorms to turn severe on Monday stretches across the eastern Plains and central Great Lakes.

An end to the warmth will come for some by Tuesday as two cold front converge on the Midwest and Northeast. One will be advancing from the Plains; the other--what meteorologists call a backdoor cold front--will be pressing through the Northeast.

Around 20 degrees will be shaved off Monday's highs on Tuesday from St. Louis to Chicago to Madison, Wisconsin, as well as central and southern New England to Albany, New York.

Boston could experience a 25-degree drop in temperatures. New York City may start Tuesday on a milder note before the cooler air rushes in.

In between the cool presses on Tuesday, the warmth will build further across the mid-Atlantic and upper Ohio Valley with record highs set to be challenged.

Wednesday through Thursday is when the summertime warmth will finally be erased from these areas. More comfortable air will also sweep into the South later in the week.

AccuWeather.com meteorologists will be monitoring the potential for any severe thunderstorms or flooding rain to occur ahead of the advancing cooler air over the next several days.

Once the heat is ushered out, it will not be quick to return to the Midwest and Northeast.

Highs will likely be held to the 50s and 60s for several days later in the week throughout the Midwest with fresh cool air pouring down from Canada.

Temperatures may rebound back into the 70s late in the week along the Northeast's I-95 corridor, but the forecast is bleak for any further warming.

"I think the cool shot is going to be centered west of the Appalachians for next weekend," stated AccuWeather.com Long Range Forecaster Mark Paquette.

"Around Monday and the days that follow, we will have to watch for a storm system to take shape and cause some damp and cool weather for the mid-Atlantic and possibly the Northeast," Paquette continued.

Despite the upcoming cooldown, those who have planted flowers or gardens will take comfort in the fact that there are not frost or freeze concerns outside of the Upper Midwest through early next week.